polars_utils::idx_map::bytes_idx_map

Struct BytesIndexMap

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pub struct BytesIndexMap<V> { /* private fields */ }
Expand description

An IndexMap where the keys are always u8 slices which are pre-hashed.

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impl<V> BytesIndexMap<V>

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pub fn new() -> Self

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pub fn reserve(&mut self, additional: usize)

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pub fn len(&self) -> IdxSize

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pub fn is_empty(&self) -> bool

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pub fn entry<'k>(&mut self, hash: u64, key: &'k [u8]) -> Entry<'_, 'k, V>

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pub unsafe fn get_index_unchecked(&self, idx: IdxSize) -> (u64, &[u8], &V)

Gets the hash, key and value at the given index by insertion order.

§Safety

The index must be less than len().

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pub fn iter_hash_keys(&self) -> impl Iterator<Item = (u64, &[u8])>

Iterates over the (hash, key) pairs in insertion order.

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impl<V> Default for BytesIndexMap<V>

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fn default() -> Self

Returns the “default value” for a type. Read more

Auto Trait Implementations§

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impl<V> Freeze for BytesIndexMap<V>

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impl<V> RefUnwindSafe for BytesIndexMap<V>
where V: RefUnwindSafe,

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impl<V> Send for BytesIndexMap<V>
where V: Send,

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impl<V> Sync for BytesIndexMap<V>
where V: Sync,

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impl<V> Unpin for BytesIndexMap<V>
where V: Unpin,

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impl<V> UnwindSafe for BytesIndexMap<V>
where V: UnwindSafe,

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impl<T> Any for T
where T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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impl<T> Borrow<T> for T
where T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for T
where T: ?Sized,

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fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T, U> Into<U> for T
where U: From<T>,

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fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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impl<T> IntoEither for T

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fn into_either(self, into_left: bool) -> Either<Self, Self>

Converts self into a Left variant of Either<Self, Self> if into_left is true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more
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fn into_either_with<F>(self, into_left: F) -> Either<Self, Self>
where F: FnOnce(&Self) -> bool,

Converts self into a Left variant of Either<Self, Self> if into_left(&self) returns true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more
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impl<T> Pointable for T

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const ALIGN: usize = _

The alignment of pointer.
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type Init = T

The type for initializers.
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unsafe fn init(init: <T as Pointable>::Init) -> usize

Initializes a with the given initializer. Read more
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unsafe fn deref<'a>(ptr: usize) -> &'a T

Dereferences the given pointer. Read more
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unsafe fn deref_mut<'a>(ptr: usize) -> &'a mut T

Mutably dereferences the given pointer. Read more
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unsafe fn drop(ptr: usize)

Drops the object pointed to by the given pointer. Read more
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impl<T, U> TryFrom<U> for T
where U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

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type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.
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impl<V, T> VZip<V> for T
where V: MultiLane<T>,

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fn vzip(self) -> V